南川合冠鼠麴草 nan chuan he guan shu qu cao

Basionym: Gnaphalium nanchuanense Y. Ling & Y. Q. Tseng, Acta Phytotax. Sin. 16(3): 85. 1978; Omalotheca nanchuanensis (Y. Ling & Y. Q. Tseng) Holub ["nanchuensis"].

Herbs, perennial, 30-40 cm tall. Stems solitary, gray tomentose pubescent, densely foliate. Basal leaves caespitose, withering before anthesis; cauline leaves linear, 4-6 cm × 2-3 mm, abaxially white lanate, adaxially green and sparsely pubescent, vein 1, base narrow, apex acute. Capitula 2-3 mm in diam., aggregated at apex to form a dense compact spiciform synflorescence 3-5(-8) cm; apical leaves prominent. Involucre ca. 5 × 2-3 mm; phyllaries 3- or 4-seriate, yellowish brown, herbaceous, apex toothed; outer ones ovate, ca. 2 mm, apex brown; inner ones oblong, 3-5 mm, apex brown striped, membranous. Florets usually ca. 65 per capitulum. Female florets ca. 60; corolla filiform, 3-4 mm, apex 2- or 3-toothed, glabrous. Bisexual florets ca. 5; corolla tubular, 3-4 mm, limbs 5-toothed. Achenes cylindric, ca. 1 mm, sparsely white pubescent. Pappus white, ca. 3 mm, basally united into a ring, silky white with slightly crenate hairs. Fl. Jul-Sep.

● Grassy slopes; 1800-2200 m. Chongqing, W Hubei.